Exhaust gas pressurizing and discharging device for underwater semi-closed cycle power system

A technology of circulating power and exhaust gas pressurization, which is applied to the components of pumping devices for elastic fluids, pump combinations for elastic fluid rotary piston type/oscillating piston type, and jet propulsion devices, which can solve the problem of difficult to use output Problems such as power systems with higher power, to achieve the effect of convenient emission layout, simple structure, and improved depth adaptability

Active Publication Date: 2021-04-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the heat exchange power of the condenser, it is difficult to apply this system to a power system with a higher output power

Method used

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  • Exhaust gas pressurizing and discharging device for underwater semi-closed cycle power system
  • Exhaust gas pressurizing and discharging device for underwater semi-closed cycle power system
  • Exhaust gas pressurizing and discharging device for underwater semi-closed cycle power system

Examples

Experimental program
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Effect test

Embodiment

[0038] Next, check and calculate the operating performance of an exhaust gas booster discharge device used in an underwater semi-closed cycle power system to verify its feasibility.

[0039] The turbine main engine 1 of this embodiment is a single-stage pure impulse underwater turbine, and its main design parameters are shown in Table 1. The fuel of the power system is HAP three-component propellant, and its gas composition and physical properties are shown in Table 2. According to the performance requirements of the power system, the turbine main engine 1 can operate at three speeds of 70kn, 46kn and 32kn. Among them, the seaworthy depth of the 70kn and 32kn working conditions is 6 to 100 meters, and the seaworthy depth of the 46kn working condition is 6 to 400 meters. rice. When the turbine main engine 1 is running in the open working condition, the main performance parameters of the main engine are shown in Table 3.

[0040] Table 1

[0041] project unit va...

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PUM

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Abstract

The invention discloses an exhaust gas pressurizing and discharging device for an underwater semi-closed cycle power system. The exhaust gas pressurizing and discharging device comprises a seawater inlet system and a turbine main engine, wherein a seawater nozzle is connected with the end part of the seawater inlet system; a gas-liquid mixing cavity is connected with the seawater nozzle; the turbine main engine is connected with an input end of the gas-liquid mixing cavity through a main engine exhaust gas pipeline; and an output end of the gas-liquid mixing cavity is sequentially connected with a gas-liquid mixed working medium pipeline, a two-phase booster pump set and a discharge pipeline. Excessive seawater is introduced to mix and condense an exhaust gas of the main engine to form a gas-liquid mixed working medium, and then the working medium is pressurized through a gas-liquid two-phase pump and discharged overboard, so that it is guaranteed that the thermal power main engine canefficiently operate under various waterway depth conditions, and the depth flexibility of an underwater thermal power system is improved.

Description

technical field [0001] The invention belongs to the technical field of unmanned underwater vehicle power equipment, and relates to a waste gas booster discharge device used in an underwater semi-closed cycle power system. Background technique [0002] Unmanned underwater vehicles have been widely used in ocean exploration, lifesaving, reconnaissance, attack and other fields, and the key component that determines its navigation performance is the underwater power system. The power host of the underwater electric power system is an electric motor. During operation, the battery pack converts chemical energy into electrical energy to make the electric motor run and drive the propeller to rotate to propel the vehicle forward. The underwater electric power system is completely isolated from the external environment, and its operating efficiency is not affected by changes in voyage depth, and its depth adaptability is very good. However, due to the limitations of battery and motor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/00F04C23/00F04C29/00F04C29/12
CPCF02C7/00F04C23/00F04C29/126F04C29/12F04C29/00
Inventor 罗凯秦侃郭庆陈猛叶常盛
Owner NORTHWESTERN POLYTECHNICAL UNIV
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